Current: 20A. Switching frequency: 25KHz. Durable in use. The positive and negative poles of the motor can be reversed.
eBay
PWM DC Motor Speed Controller 6V 12V 24V 3A Forward Reverse Switch Adjustable Governor for DC Motors
Aliexpress UK
Maximum Current: 10A. Small size and elegant appearance, stable performance. Speed Range: 5%-100%.
eBay
DC 5V-12V 6V Stepper Motor Driver Mini 2-phase 4-wire 4-phase 5-wire Multifunction Step Motor Speed Controller Module Board
Aliexpress UK
Output Current: 0 ~ 20A. Maximum Current: 20A (under good heat dissipation). Pulse Width Modulation Frequency: 16 Hz. Adopting high quality material, the motor speed regulator enables stable working and long service life as well.
eBay
New DC 5V-12V 2-phase 4-wire Micro Stepper Motor Driver Mini 4-phase 5-wire Stepping Motor Speed Controller Module Board
Aliexpress UK
Maximum Current: 20A (under good heat dissipation). Pulse Width Modulation Frequency: 16 Hz. Adopting high quality material, the motor speed regulator enables stable working and long service life as well.
eBay
PWM Motor Speed Controller DC 6-60V with Encoder Knob Adjustable Frequency Driver Module for Industrial Motors CNC Machine
Aliexpress UK
Current: 20A. Switching frequency: 25KHz. Durable in use. The positive and negative poles of the motor can be reversed.
eBay
PWM DC Motor Speed Controller Module 3.3V-5V for Arduino ESP32, Vibration Motor Driver Adjustable Switch Control Board DIY Kit
Aliexpress UK
The tungsten lamp is 4000w, the heating type is 3000w, the electric tool is 2000w, and the fan type is 1500w. Max Power: 4000W. With heat dissipation port for fast heat dissipation. The inductive load is 1/3 of the resistive load.
eBay
DC7-12V BLDC PWM Hall Motor Speed Controller Module 3/4 Wire Brushless Motor Driver Board Governor Volt Current Protection Board
Aliexpress UK
It is made with high quality circuit board which ensures a longer service life. Suitable for:Brushed DC motor. Designed with a digit display that shows the rate in percent of actual speed to maximum speed.
eBay
Mini 3A PWM 12V DC Motor Speed Controller Module DC-DC 4.5V-35V Adjustable Speed Regulator Control Governor Switch 24V
Aliexpress UK
This speed governor is used for the use of DC brushed motors (the motor is connected regardless of positive or negative). Good‑quality resin material, possess heat resistance, low temperature resistance, and excellent electrical performance.
eBay
5Pcs Mini 5A 90W PWM 12V DC Motor Speed Controller Module DC-DC 5V-35V Adjustable Speed Regulator Control Governor Switch 24V
Aliexpress UK